Cursor v1.5 - Release Discussions

[Aaron_Peters]

Still seeing the “endless summarization” issue described here in 1.5.4:

Summarization performance issues

Where does the bug appear (feature/product)? Cursor IDE Describe the Bug When doing a possibly longer-running task with Claude Sonnet 4 thinking, e.g. analysing and fixing test issues, which possibly have a lot of output and thus fill up the context window quickly, there is a an issue with the context summarization. I did also see this behaviour with GPT-5 so it doesn’t seem to be strictly connected to Sonnet 4 Thinking. “Summarizing context” steps seems to run indefinitely, both indicated vis…